Castelli pour a lot of energy into their groundbreaking innovations like the Alpha Jacket. It's part of their constant striving to make riding faster, more fun and more comfortable. But there's another side of them that appreciated the simple perfection of a perfectly constructed garment with just the right fabrics, fit, design and components, where everything just kind of disappears. That's the Castelli Passo Giau Windproof Jacket. Designed to fit your body. Nothing superfluous.